Radeon R9 280 vs Radeon R9 390X
In this comparison between Radeon R9 280 and Radeon R9 390X you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people Radeon R9 280 will be the best choice, for others Radeon R9 390X will be their preference. Study the comparison tables below and make your choice.
Main Specs
Radeon R9 280
Radeon R9 390X
Power consumption (TDP)
200 Watt
275 Watt
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1 x 6-pin + 1 x 8-pin
1 x 6-pin, 1 x 8-pin
Memory type
GDDR5
GDDR5
Maximum RAM amount
3 GB
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
2x DVI, 1x HDMI, 1x DisplayPort
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Radeon R9 390X has 37% more power consumption, than Radeon R9 280.
Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
Both cards are used in Desktops.
Radeon R9 280 is build with GCN 1.0 architecture, and Radeon R9 390X - with GCN.
Radeon R9 280 and Radeon R9 390X are manufactured by 28 nm process technology.
Both graphics cards are the same length of 275 mm.
Memory clock speed of Radeon R9 280 is 200 MHz higher, than Radeon R9 390X.
Game benchmarks
Assassin's Creed Odyssey
Battlefield 5
Call of Duty: Warzone
Counter-Strike: Global Offensive
Cyberpunk 2077
Dota 2
Far Cry 5
Fortnite
Forza Horizon 4
Grand Theft Auto V
Metro Exodus
Minecraft
PLAYERUNKNOWN'S BATTLEGROUNDS
Red Dead Redemption 2
The Witcher 3: Wild Hunt
World of Tanks
high / 1080p
35−40
50−55
ultra / 1080p
21−24
30−35
QHD / 1440p
16−18
24−27
4K / 2160p
10−11
14−16
low / 720p
60−65
75−80
medium / 1080p
40−45
55−60
The average gaming FPS of Radeon R9 390X in Assassin's Creed Odyssey is 34% more, than Radeon R9 280.
high / 1080p
55−60
75−80
ultra / 1080p
45−50
65−70
QHD / 1440p
35−40
50−55
4K / 2160p
18−20
27−30
low / 720p
100−110
130−140
medium / 1080p
60−65
85−90
The average gaming FPS of Radeon R9 390X in Battlefield 5 is 37% more, than Radeon R9 280.
low / 768p
50−55
45−50
QHD / 1440p
0−1
45−50
The average gaming FPS of Radeon R9 280 in Call of Duty: Warzone is 10% more, than Radeon R9 390X.
low / 768p
250−260
250−260
medium / 768p
220−230
230−240
ultra / 1080p
180−190
−
QHD / 1440p
110−120
150−160
4K / 2160p
70−75
100−110
high / 768p
210−220
220−230
The average gaming FPS of Radeon R9 390X in Counter-Strike: Global Offensive is 10% more, than Radeon R9 280.
low / 768p
60−65
70−75
medium / 1080p
55−60
50−55
The average gaming FPS of Radeon R9 390X in Cyberpunk 2077 is 3% more, than Radeon R9 280.
low / 768p
120−130
120−130
medium / 768p
110−120
110−120
ultra / 1080p
100−110
110−120
The average gaming FPS of Radeon R9 390X in Dota 2 is 2% more, than Radeon R9 280.
high / 1080p
45−50
60−65
ultra / 1080p
40−45
60−65
QHD / 1440p
27−30
40−45
4K / 2160p
14−16
21−24
low / 720p
80−85
100−110
medium / 1080p
45−50
65−70
The average gaming FPS of Radeon R9 390X in Far Cry 5 is 39% more, than Radeon R9 280.
high / 1080p
60−65
90−95
ultra / 1080p
45−50
70−75
QHD / 1440p
27−30
45−50
4K / 2160p
27−30
21−24
low / 720p
180−190
210−220
medium / 1080p
110−120
140−150
The average gaming FPS of Radeon R9 390X in Fortnite is 28% more, than Radeon R9 280.
high / 1080p
60−65
80−85
ultra / 1080p
45−50
65−70
QHD / 1440p
30−35
45−50
4K / 2160p
24−27
30−35
low / 720p
100−110
130−140
medium / 1080p
65−70
90−95
The average gaming FPS of Radeon R9 390X in Forza Horizon 4 is 35% more, than Radeon R9 280.
low / 768p
140−150
160−170
medium / 768p
120−130
150−160
high / 1080p
70−75
95−100
ultra / 1080p
30−35
45−50
QHD / 1440p
21−24
35−40
The average gaming FPS of Radeon R9 390X in Grand Theft Auto V is 26% more, than Radeon R9 280.
high / 1080p
24−27
35−40
ultra / 1080p
20−22
30−35
QHD / 1440p
16−18
24−27
4K / 2160p
8−9
14−16
low / 720p
65−70
90−95
medium / 1080p
30−35
50−55
The average gaming FPS of Radeon R9 390X in Metro Exodus is 50% more, than Radeon R9 280.
low / 768p
130−140
120−130
medium / 1080p
120−130
−
The average gaming FPS of Radeon R9 280 in Minecraft is 8% more, than Radeon R9 390X.
high / 1080p
−
75−80
ultra / 1080p
14−16
50−55
4K / 2160p
−
18−20
low / 720p
100−110
120−130
medium / 1080p
18−20
85−90
The average gaming FPS of Radeon R9 390X in PLAYERUNKNOWN'S BATTLEGROUNDS is 91% more, than Radeon R9 280.
high / 1080p
24−27
35−40
ultra / 1080p
16−18
21−24
QHD / 1440p
10−11
16−18
4K / 2160p
7−8
10−11
low / 720p
65−70
90−95
medium / 1080p
35−40
50−55
The average gaming FPS of Radeon R9 390X in Red Dead Redemption 2 is 40% more, than Radeon R9 280.
low / 768p
130−140
180−190
medium / 768p
85−90
120−130
high / 1080p
45−50
70−75
ultra / 1080p
24−27
35−40
4K / 2160p
16−18
24−27
The average gaming FPS of Radeon R9 390X in The Witcher 3: Wild Hunt is 43% more, than Radeon R9 280.
low / 768p
90−95
120−130
medium / 768p
60−65
−
ultra / 1080p
50−55
65−70
high / 768p
60−65
120−130
The average gaming FPS of Radeon R9 390X in World of Tanks is 52% more, than Radeon R9 280.
Full Specs
Radeon R9 280
Radeon R9 390X
Architecture
GCN 1.0
GCN
Code name
Tahiti
Grenada XT
Type
Desktop
Desktop
Release date
4 March 2014
16 June 2015
Pipelines
1792
2816
Boost Clock
933 MHz
1050 MHz
Transistor count
4,313 million
6,200 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
104.5
184.8
Floating-point performance
3,344 gflops
5,914 gflops
Length
275 mm
275 mm
Memory bus width
384 Bit
512 Bit
Memory clock speed
1250 MHz
1050 MHz
Memory bandwidth
240 GB/s
384 GB/s
Shared memory
-
Shader Model
5.1
6.3
OpenGL
4.6
4.6
OpenCL
1.2
2.0
Vulkan
+
+
FreeSync
+
+
Bus support
PCIe 3.0
PCIe 3.0
HDMI
+
+
Bitcoin / BTC (SHA256)
408 Mh/s
684 Mh/s
Eyefinity
+
+
HD3D
+
PowerTune
+
TrueAudio
+
+
Mantle
+
Design
reference
reference
Bridgeless CrossFire
+
Number of Eyefinity displays
6
DisplayPort support
+
CrossFire
+
+
VCE
+
DDMA audio
+
+
Ethereum / ETH (DaggerHashimoto)
21.5 Mh/s
27.5 Mh/s
High bandwidth memory (HBM)
-
LiquidVR
+
TressFX
+
UVD
+
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